.border-1px {
  position: relative;
  &::before {
    display: block;
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    border-top: 1px solid #f9f9f9;
    content: '';
  }
}

@media (-webkit-min-device-pixel-ratio: 1.5),(min-device-pixel-ratio: 1.5) {
  .border-1px {
    &::before {
      -webkit-transform: scaleY(0.7);
      transform: scaleY(0.7);
    }
  }
}

@media (-webkit-min-device-pixel-ratio: 2),(min-device-pixel-ratio: 2) {
  .border-1px {
    &::before {
      -webkit-transform: scaleY(0.5);
      transform: scaleY(0.5);
    }
  }

}


